The widget saves you the hassle of configuring the Facebook Comment widget to work on any page and It will automatically allow page specific comments.
The widget also presents all the various options for you in a user-friendly control designer to make it easily customizable.
widget supports the new and old Facebook Comments as the XID and URL
are automatically generated so you do not need to worry about that. It
also supports comments moderation by adding the application Id meta tag.
This is tested with the Sitefinity 4.2 version however, you can easily make it work with any version of Sitefinity if you follow the steps from this video presented by Falafel.
Take a look at the below screenshots to get an idea about what you should expect.